Configure the two-network topology

Configure the two-network topologyΒΆ

Fuel supports two-network configuration where one network is dedicated for PXE traffic and another network for all other traffic.

To configure a two-network topology:

  1. Create a new network for all non-PXE traffic:

    # fuel network-group --create --name everything --cidr <cidr>
    --gateway <gateway> --nodegroup <nodegroup>
  2. Set the render_addr_mask parameter to internal for this network by typing:

    # fuel network-group --set --network 39 --meta '{"name":
    "everything", "notation": "cidr", "render_type": null, "map_priority": 2,
    "configurable": true, "use_gateway": true, "render_addr_mask":
    "internal", "vlan_start": null, "cidr": ""}'

    This parameter is required by the Fuel library. The Fuel library requires a value called internal_address for each node. This value is set to the node’s IP address from a network group which has render_addr_mask set to internal in its metadata. Therefore, update render_addr_mask for this network.

  3. Save network template for two networks as network_template_<env id>.yaml.


    Verify that nic_mapping matches your configuration.

  4. Upload the network template by typing:

    # fuel network-template --upload --env <env id>
  5. Deploy the environment.

  6. After Fuel completes the deployment, verify that only one bridge is configured by typing:

    # ip -4 a

    Example of system output:

    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
    inet scope host lo
    valid_lft forever preferred_lft forever
    8: br-fw-admin: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
    state UP group default
    inet brd scope global br-fw-admin
    valid_lft forever preferred_lft forever
    16: vr-host-base: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
    pfifo_fast state UP group default qlen 1000
    inet scope global vr-host-base
    valid_lft forever preferred_lft forever
    30: hapr-host: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
    state UP group default qlen 1000
    inet scope global hapr-host
    valid_lft forever preferred_lft forever
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